<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			let obj = {
				name:'haha',
				age:20
			}
			console.log(obj);
			obj.name = "hehe";
			console.log(obj);
			obj.level = "一年级";
			console.log(obj);
			obj.say = function() {
				console.log("我是对象临时添加方法");
			}
			obj.say();
			
			//
		</script>
	</body>
</html>
